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d395e6ad KS |
1 | /* |
2 | * mach-davinci/devices.c | |
3 | * | |
4 | * DaVinci platform device setup/initialization | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
d395e6ad KS |
12 | #include <linux/init.h> |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/dma-mapping.h> | |
15 | #include <linux/io.h> | |
16 | ||
d395e6ad | 17 | #include <mach/hardware.h> |
ec2a0833 | 18 | #include <linux/platform_data/i2c-davinci.h> |
80b02c17 | 19 | #include <mach/irqs.h> |
5526b3f7 KH |
20 | #include <mach/cputype.h> |
21 | #include <mach/mux.h> | |
2dbf56ae | 22 | #include <mach/edma.h> |
ec2a0833 | 23 | #include <linux/platform_data/mmc-davinci.h> |
f64691b3 | 24 | #include <mach/time.h> |
d395e6ad | 25 | |
5cfb19ac | 26 | #include "davinci.h" |
28552c2e KH |
27 | #include "clock.h" |
28 | ||
f5c122da | 29 | #define DAVINCI_I2C_BASE 0x01C21000 |
7a9978a1 | 30 | #define DAVINCI_ATA_BASE 0x01C66000 |
2dbf56ae KH |
31 | #define DAVINCI_MMCSD0_BASE 0x01E10000 |
32 | #define DM355_MMCSD0_BASE 0x01E11000 | |
33 | #define DM355_MMCSD1_BASE 0x01E00000 | |
19ff3bf2 SP |
34 | #define DM365_MMCSD0_BASE 0x01D11000 |
35 | #define DM365_MMCSD1_BASE 0x01D00000 | |
f5c122da | 36 | |
5cfb19ac MH |
37 | void __iomem *davinci_sysmod_base; |
38 | ||
39 | void davinci_map_sysmod(void) | |
40 | { | |
41 | davinci_sysmod_base = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE, | |
42 | 0x800); | |
43 | /* | |
44 | * Throw a bug since a lot of board initialization code depends | |
45 | * on system module availability. ioremap() failing this early | |
46 | * need careful looking into anyway. | |
47 | */ | |
48 | BUG_ON(!davinci_sysmod_base); | |
49 | } | |
1a717c00 | 50 | |
d395e6ad KS |
51 | static struct resource i2c_resources[] = { |
52 | { | |
53 | .start = DAVINCI_I2C_BASE, | |
54 | .end = DAVINCI_I2C_BASE + 0x40, | |
55 | .flags = IORESOURCE_MEM, | |
56 | }, | |
57 | { | |
58 | .start = IRQ_I2C, | |
59 | .flags = IORESOURCE_IRQ, | |
60 | }, | |
61 | }; | |
62 | ||
63 | static struct platform_device davinci_i2c_device = { | |
64 | .name = "i2c_davinci", | |
65 | .id = 1, | |
66 | .num_resources = ARRAY_SIZE(i2c_resources), | |
67 | .resource = i2c_resources, | |
68 | }; | |
69 | ||
70 | void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata) | |
71 | { | |
5526b3f7 KH |
72 | if (cpu_is_davinci_dm644x()) |
73 | davinci_cfg_reg(DM644X_I2C); | |
74 | ||
d395e6ad KS |
75 | davinci_i2c_device.dev.platform_data = pdata; |
76 | (void) platform_device_register(&davinci_i2c_device); | |
77 | } | |
78 | ||
7a9978a1 SS |
79 | static struct resource ide_resources[] = { |
80 | { | |
81 | .start = DAVINCI_ATA_BASE, | |
82 | .end = DAVINCI_ATA_BASE + 0x7ff, | |
83 | .flags = IORESOURCE_MEM, | |
84 | }, | |
85 | { | |
86 | .start = IRQ_IDE, | |
87 | .end = IRQ_IDE, | |
88 | .flags = IORESOURCE_IRQ, | |
89 | }, | |
90 | }; | |
91 | ||
92 | static u64 ide_dma_mask = DMA_BIT_MASK(32); | |
93 | ||
94 | static struct platform_device ide_device = { | |
95 | .name = "palm_bk3710", | |
96 | .id = -1, | |
97 | .resource = ide_resources, | |
98 | .num_resources = ARRAY_SIZE(ide_resources), | |
99 | .dev = { | |
100 | .dma_mask = &ide_dma_mask, | |
101 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
102 | }, | |
103 | }; | |
104 | ||
105 | void __init davinci_init_ide(void) | |
106 | { | |
107 | if (cpu_is_davinci_dm644x()) { | |
108 | davinci_cfg_reg(DM644X_HPIEN_DISABLE); | |
109 | davinci_cfg_reg(DM644X_ATAEN); | |
110 | davinci_cfg_reg(DM644X_HDIREN); | |
111 | } else if (cpu_is_davinci_dm646x()) { | |
112 | /* IRQ_DM646X_IDE is the same as IRQ_IDE */ | |
113 | davinci_cfg_reg(DM646X_ATAEN); | |
114 | } else { | |
115 | WARN_ON(1); | |
116 | return; | |
117 | } | |
118 | ||
119 | platform_device_register(&ide_device); | |
120 | } | |
121 | ||
a0a56db9 | 122 | #if IS_ENABLED(CONFIG_MMC_DAVINCI) |
2dbf56ae | 123 | |
b0958aed | 124 | static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32); |
2dbf56ae KH |
125 | |
126 | static struct resource mmcsd0_resources[] = { | |
127 | { | |
128 | /* different on dm355 */ | |
129 | .start = DAVINCI_MMCSD0_BASE, | |
130 | .end = DAVINCI_MMCSD0_BASE + SZ_4K - 1, | |
131 | .flags = IORESOURCE_MEM, | |
132 | }, | |
133 | /* IRQs: MMC/SD, then SDIO */ | |
134 | { | |
135 | .start = IRQ_MMCINT, | |
136 | .flags = IORESOURCE_IRQ, | |
137 | }, { | |
138 | /* different on dm355 */ | |
139 | .start = IRQ_SDIOINT, | |
140 | .flags = IORESOURCE_IRQ, | |
141 | }, | |
142 | /* DMA channels: RX, then TX */ | |
143 | { | |
60902a2c | 144 | .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT), |
2dbf56ae KH |
145 | .flags = IORESOURCE_DMA, |
146 | }, { | |
60902a2c | 147 | .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT), |
2dbf56ae KH |
148 | .flags = IORESOURCE_DMA, |
149 | }, | |
150 | }; | |
151 | ||
152 | static struct platform_device davinci_mmcsd0_device = { | |
d7ca4c75 | 153 | .name = "dm6441-mmc", |
2dbf56ae KH |
154 | .id = 0, |
155 | .dev = { | |
156 | .dma_mask = &mmcsd0_dma_mask, | |
b0958aed | 157 | .coherent_dma_mask = DMA_BIT_MASK(32), |
2dbf56ae KH |
158 | }, |
159 | .num_resources = ARRAY_SIZE(mmcsd0_resources), | |
160 | .resource = mmcsd0_resources, | |
161 | }; | |
162 | ||
b0958aed | 163 | static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32); |
2dbf56ae KH |
164 | |
165 | static struct resource mmcsd1_resources[] = { | |
166 | { | |
167 | .start = DM355_MMCSD1_BASE, | |
168 | .end = DM355_MMCSD1_BASE + SZ_4K - 1, | |
169 | .flags = IORESOURCE_MEM, | |
170 | }, | |
171 | /* IRQs: MMC/SD, then SDIO */ | |
172 | { | |
173 | .start = IRQ_DM355_MMCINT1, | |
174 | .flags = IORESOURCE_IRQ, | |
175 | }, { | |
176 | .start = IRQ_DM355_SDIOINT1, | |
177 | .flags = IORESOURCE_IRQ, | |
178 | }, | |
179 | /* DMA channels: RX, then TX */ | |
180 | { | |
60902a2c | 181 | .start = EDMA_CTLR_CHAN(0, 30), /* rx */ |
2dbf56ae KH |
182 | .flags = IORESOURCE_DMA, |
183 | }, { | |
60902a2c | 184 | .start = EDMA_CTLR_CHAN(0, 31), /* tx */ |
2dbf56ae KH |
185 | .flags = IORESOURCE_DMA, |
186 | }, | |
187 | }; | |
188 | ||
189 | static struct platform_device davinci_mmcsd1_device = { | |
d7ca4c75 | 190 | .name = "dm6441-mmc", |
2dbf56ae KH |
191 | .id = 1, |
192 | .dev = { | |
193 | .dma_mask = &mmcsd1_dma_mask, | |
b0958aed | 194 | .coherent_dma_mask = DMA_BIT_MASK(32), |
2dbf56ae KH |
195 | }, |
196 | .num_resources = ARRAY_SIZE(mmcsd1_resources), | |
197 | .resource = mmcsd1_resources, | |
198 | }; | |
199 | ||
200 | ||
201 | void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) | |
202 | { | |
203 | struct platform_device *pdev = NULL; | |
204 | ||
205 | if (WARN_ON(cpu_is_davinci_dm646x())) | |
206 | return; | |
207 | ||
208 | /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too; | |
209 | * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused. | |
210 | * | |
211 | * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are | |
212 | * not handled right here ... | |
213 | */ | |
214 | switch (module) { | |
215 | case 1: | |
19ff3bf2 SP |
216 | if (cpu_is_davinci_dm355()) { |
217 | /* REVISIT we may not need all these pins if e.g. this | |
218 | * is a hard-wired SDIO device... | |
219 | */ | |
220 | davinci_cfg_reg(DM355_SD1_CMD); | |
221 | davinci_cfg_reg(DM355_SD1_CLK); | |
222 | davinci_cfg_reg(DM355_SD1_DATA0); | |
223 | davinci_cfg_reg(DM355_SD1_DATA1); | |
224 | davinci_cfg_reg(DM355_SD1_DATA2); | |
225 | davinci_cfg_reg(DM355_SD1_DATA3); | |
226 | } else if (cpu_is_davinci_dm365()) { | |
19ff3bf2 | 227 | /* Configure pull down control */ |
5cfb19ac MH |
228 | unsigned v; |
229 | ||
230 | v = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); | |
231 | __raw_writel(v & ~0xfc0, | |
232 | DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); | |
19ff3bf2 SP |
233 | |
234 | mmcsd1_resources[0].start = DM365_MMCSD1_BASE; | |
235 | mmcsd1_resources[0].end = DM365_MMCSD1_BASE + | |
236 | SZ_4K - 1; | |
eb5ba378 | 237 | mmcsd1_resources[2].start = IRQ_DM365_SDIOINT1; |
d7ca4c75 | 238 | davinci_mmcsd1_device.name = "da830-mmc"; |
19ff3bf2 | 239 | } else |
2dbf56ae KH |
240 | break; |
241 | ||
2dbf56ae KH |
242 | pdev = &davinci_mmcsd1_device; |
243 | break; | |
244 | case 0: | |
245 | if (cpu_is_davinci_dm355()) { | |
246 | mmcsd0_resources[0].start = DM355_MMCSD0_BASE; | |
247 | mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1; | |
248 | mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0; | |
249 | ||
250 | /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */ | |
251 | davinci_cfg_reg(DM355_MMCSD0); | |
252 | ||
253 | /* enable RX EDMA */ | |
254 | davinci_cfg_reg(DM355_EVT26_MMC0_RX); | |
19ff3bf2 SP |
255 | } else if (cpu_is_davinci_dm365()) { |
256 | mmcsd0_resources[0].start = DM365_MMCSD0_BASE; | |
257 | mmcsd0_resources[0].end = DM365_MMCSD0_BASE + | |
258 | SZ_4K - 1; | |
259 | mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0; | |
d7ca4c75 | 260 | davinci_mmcsd0_device.name = "da830-mmc"; |
19ff3bf2 | 261 | } else if (cpu_is_davinci_dm644x()) { |
2dbf56ae | 262 | /* REVISIT: should this be in board-init code? */ |
2dbf56ae | 263 | /* Power-on 3.3V IO cells */ |
5cfb19ac MH |
264 | __raw_writel(0, |
265 | DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN)); | |
2dbf56ae KH |
266 | /*Set up the pull regiter for MMC */ |
267 | davinci_cfg_reg(DM644X_MSTK); | |
268 | } | |
269 | ||
270 | pdev = &davinci_mmcsd0_device; | |
271 | break; | |
272 | } | |
273 | ||
274 | if (WARN_ON(!pdev)) | |
275 | return; | |
276 | ||
277 | pdev->dev.platform_data = config; | |
278 | platform_device_register(pdev); | |
279 | } | |
280 | ||
281 | #else | |
282 | ||
283 | void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) | |
284 | { | |
285 | } | |
286 | ||
287 | #endif | |
288 | ||
fb631387 KH |
289 | /*-------------------------------------------------------------------------*/ |
290 | ||
291 | static struct resource wdt_resources[] = { | |
292 | { | |
5fcd294d KH |
293 | .start = DAVINCI_WDOG_BASE, |
294 | .end = DAVINCI_WDOG_BASE + SZ_1K - 1, | |
fb631387 KH |
295 | .flags = IORESOURCE_MEM, |
296 | }, | |
297 | }; | |
298 | ||
299 | struct platform_device davinci_wdt_device = { | |
300 | .name = "watchdog", | |
301 | .id = -1, | |
302 | .num_resources = ARRAY_SIZE(wdt_resources), | |
303 | .resource = wdt_resources, | |
304 | }; | |
305 | ||
c6121ddd SN |
306 | void davinci_restart(char mode, const char *cmd) |
307 | { | |
308 | davinci_watchdog_reset(&davinci_wdt_device); | |
309 | } | |
310 | ||
fb631387 KH |
311 | static void davinci_init_wdt(void) |
312 | { | |
313 | platform_device_register(&davinci_wdt_device); | |
314 | } | |
315 | ||
316 | /*-------------------------------------------------------------------------*/ | |
317 | ||
f0fba2ad LG |
318 | /*-------------------------------------------------------------------------*/ |
319 | ||
f64691b3 MG |
320 | struct davinci_timer_instance davinci_timer_instance[2] = { |
321 | { | |
1bcd38ad | 322 | .base = DAVINCI_TIMER0_BASE, |
f64691b3 MG |
323 | .bottom_irq = IRQ_TINT0_TINT12, |
324 | .top_irq = IRQ_TINT0_TINT34, | |
325 | }, | |
326 | { | |
1bcd38ad | 327 | .base = DAVINCI_TIMER1_BASE, |
f64691b3 MG |
328 | .bottom_irq = IRQ_TINT1_TINT12, |
329 | .top_irq = IRQ_TINT1_TINT34, | |
330 | }, | |
331 | }; | |
332 | ||
333 | /*-------------------------------------------------------------------------*/ | |
334 | ||
fb631387 KH |
335 | static int __init davinci_init_devices(void) |
336 | { | |
337 | /* please keep these calls, and their implementations above, | |
338 | * in alphabetical order so they're easier to sort through. | |
339 | */ | |
340 | davinci_init_wdt(); | |
341 | ||
342 | return 0; | |
343 | } | |
344 | arch_initcall(davinci_init_devices); | |
345 |